Improvement in screw cider-presses



UNITED STATES PATENT OFFICE.

STEWART sANDERsoN, on SHELBY,NEW YORK, ASSIGNOR TO JONATHAN HOLBROOK, OF SHERBURNE, MASSACHUSETTS.

IMPROVEMENT IN SCREW CIDER- PRES SES.

Specification forming part of Letters Patent No. 131,785, dated October 1, 1872.

To allwhom it may concern:

Be it known that I, STEWART SANDERSON,

. of Shelby, in the county of Orleans and" State of New York, have invented certain Improvements in Screw-Presses, of which the followin g is a specification:

This invention relates to animproved screwpress for cider-making and other purposes, whereby a simple and powerful press is obtained and the invention consists in combining with the platen or follower two screws one aright and the other aleft hand screw and two worm-wheel nuts, with a single screw or worm actuating both of said wormwheels, as hereinafter more fully described.

Figure l is a section front view, and Fig. 2 is plan detail View.

Similar letters of reference indicate like parts in the separate figures.

The follower D is carried by two screws,

one a right-hand and the other a left-hand screw. These screws are forced up anddown screw, H. In forcing the platen or follower D down the nuts G press upon the beam B as a fulcrum, but in lifting the follower the nuts have a bearing on the cross-piece E of the frame.

This combination of screws makes the press so slow and powerfulin its action that the worm or screw H can be run by an ordinary belt, and the said worm-shaft is provided with a belt-pulley, h.

I claim The improved arrangement, herein shown, of the bar or follower l), the reversed screws F F, the nuts G G, with worm-wheel peripheries, the worm H and nut-supporter E, with the frame A B 0, all constructed and operating as and for the purpose set forth.

The above specification of my invention signed by me this 5th day of April, 1872.

STEWART SANDERSON. 

